Device for side-dressing the teeth of saws



(No Model.) Y

H. W. WILLIAMS. DEVICE FOR SID-E DRESSING THE TEETH 0F SAWS,

No. 333,931. Patented June 5, 1333.

tree STATES PATENT OFFICE.

HAMILTON W". \VILLIAMS, OF NASHVILLE, TENNESSEE.

vDEVICE FOR SIDE-DRESSING THE TEETH OF SAWS.

$PECIEICATION forming part of Letters Patent No. 383,931, dated June 5,1888.

Application filed February 11, 1588. Serial No. 263,682.

To all whom, it may concern:

Be it known that I, HAMILTON W. WIL- LIAMs, a citizen of the UnitedStates, residing at Nashville, in the county of Davidson and State ofTennessee, have invented a new and a perspective view of a deviceembodying my improvement. Fig. 2 is a central longitudinal elevation ofthe same, one of the sections of the frame or body being removed. Fig. 3is a vertical transverse sectional view, taken on the line 00 w of Fig.1.

A represents the frame or body, which comprises two longitudinalseparable sections, B 0, each of which is made of cast metal, wood, orany other material, and is of the form here shown. At the upper cornersof the said sections or members are formed ears D E, which match eachother and enable the members or sections to be placed side by side. Ahingebolt, F, passes through vertical aligned openings in the matchedears E, and a removable pin, G, is adapted to be inserted in alignedopenings in the matched ears D. From the under side of each section ormember, at the center thereof, projects a vertical arm, H, of suitablelength, and on the inner side of each section, at a suitable distancefrom the upper edge thereof, is made a longitudinal groove, I, the innerside of which is beveled or inclined, as shown. In the said grooves Iare secured a pair of files, K,which are triangular in cross section andhave their inner opposing edges projecting slightly within the innersides of the sections or members B CI The said sections or members areprovided each with a cam-detent, L, which is arranged in an opening inthe center of the section or member and is adapted to impinge upon theupper edge of the file, so as to secure the latter rigidly in positionin the groove.

M represents a pair of adjusting-screws, which work intransverse-threaded openings (No model.)

in the lower corners of each member or section, and N represents similaradjusting screws, which work in threaded openings in the lower ends ofarms H.

To the inner side of the member B is secured a vertically-movableguide-plate, O, which is provided at its ends with vertical slots P.Setscrews R work in the said slots and extend through the member B, andare adapted to clamp the guide-plate to the said member at any desiredvertical adjustment.

The operation of my invention is as follows: After the teeth of the sawhave been swaged or sharpened, or while the saw is still held in theclamp or vise with its teeth uppermost, the members of the frame or bodyA are ar ranged on opposite sides of the saw and closed upon the sameand secured by the pin G. The lower edge of the guide-plate O rests uponthe points of the teeth and the lower edges of the files rest againstthe sides of the teeth near the points thereof. The guide-plate isadjusted vertically, according to the desired width of the saw-teeth,and when the same is adjusted the operator grasps the frame or bodyAwith both hands and moves the same longitudinally back and forth on thesaw, thereby causing the files to cut the sides of the saw-teeth andreduce the same to an even width throughout the entire length of thesaw. Those portions of-the members or sections B O which are below thefiles are slightly recessed or cut away, as shown in Fig. 3, to leavespaces on opposite sides of the saw, through which spaces the filingsdrop when the evener is in operation. WVhen it is desired to onlyoperate 011 one side of the saw-teeth, the operator may unjoiut thedevice, entirely discard the member or section 0, and only use thesection B,with one file and the gage, as will be readily understood.

Having thus described my invention, I claim-- I. The combination of themembers or sections B 0, having the matched ears D E at opposite endsand having the grooves I in their opposing sides,the files secured insaid grooves, the gage-plate O, secured to the inner side of one of themembers and vertically adjustable, the bolt F, connecting the ears E andforming the hinge for the members, and the removable 2. The combinationof the members or sec- 'of a saw, said members having the grooves Itions B 0, having the matched ears D E at 0pand the set-screws M N, thefiles secured in the posite ends and having the grooves I in theirgrooves I, and the gage-Plate Q, secured to'one x 5 opposingsides,thefiles securedin said grooves, of the members or sections andvertically ad- 5 the bolt F, connecting the ears E and forming justablethereon.

the hinge for the members, and the removable I In testimony that I claimthe foregoing as my pin G, adapted to be inserted in aligned open- I ownI have hereto affixed my signature in pres ings in the ears D,substantially as described. ence of two Witnesses.

3. The combination of the members or sec- HAMILTON XV. WILLIAMS. IOtions 13 C, hinged together at one end and hav- WVitnessesz.

ing the fastening device at the opposite ends JAMES E. \VARNER,

to secure the same together on opposite sides GEORGE W. SHIELDs, J r.

